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Hi,<div><br></div><div> Sorry for delay. <br><br> Unfortunately this not going to work (tested by the way), once cluster directory (under /sys/kernel/config/cluster/) is created when we start o2ctb daemon, after that its not possible to handle any modify operation over that (write()) manually. Once you try you will get an error - Operation not permitted -- which is normal.</div><div><br></div><div> Researching a little bit more, I have seen that OCFS2 1.4 does not support modify nodes in a running cluster, then I check BugZilla to open a feature request, however someone already created years and years ago with no response. </div><div><br></div><div> Add a new node in a running cluster works fine, to remove or modify you have to stop the whole cluster/mount points though.</div><div><br></div><div>-- When run a new node command you will get:</div><div><br></div><div><div># Node node2 created</div></div><div><br></div><div>-- When run a modificatio!
n command you will get:</div><div><br></div><div># OCFS - Not yet supported</div><div><br></div><div> At the moment we will have to use Amazon VPC once we will ensure that IP address will not change And whether any bug occurs, we can simply replace such NIC to another node and so on.</div><div><br></div><div>References:</div><div><br></div><div>OCFS BugZilla - <a href="https://oss.oracle.com/bugzilla/buglist.cgi?query_format=specific&order=relevance+desc&bug_status=__open__&product=&content=modify+node" style="font-size: 10pt; ">https://oss.oracle.com/bugzilla/buglist.cgi?query_format=specific&order=relevance+desc&bug_status=__open__&product=&content=modify+node</a></div><div>Mailing list thread - <a href="http://www.mail-archive.com/ocfs2-users@oss.oracle.com/msg00085.html" style="font-size: 10pt; ">http://www.mail-archive.com/ocfs2-users@oss.oracle.com/msg00085.html</a></div><div> Quote from OCFS developer --&nbs!
p;</div><div> <span style="background-color: rgb(255, 255, 255); "><font size="1">The o2cb cluster stack currently only allows adding new nodes</font></span></div><pre style="background-color: rgb(255, 255, 255); "><font face="Tahoma" size="1">dynamically. All other ops, modify/del, require the cluster to be down.</font></pre><div><br><br></div><div> Thank you very much for reply and I strongly believe that such clarification will help someone else with the same issue.<br><br>Heitor Lessa<br><br><br><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">From: guozhonghua@h3c.com<br>To: heitor.lessa@hotmail.com<br>CC: ocfs2-users@oss.oracle.com<br>Subject: 答复: [Ocfs2-users] Renew IP address node came online again - Amazon EC2<br>Date: Mon, 25 Jun 2012 11:32:21 +0000<br><br>
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<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy">Hi,
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<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy"> </span></font></p>
<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy">You can remove the directory of the node, and add it again with o2cb_ctl command;
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<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy"> </span></font></p>
<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy">For example, Please refer to the man o2cb_ctl for details:
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<font size="1" face="Arial"><span lang="EN-US" style="font-size:9.0pt;line-height:150%;font-family:Arial">o2cb_ctl -C -i -n node2 -t node -a number= -a ip_address=New_IP -a ip_port=New_port -a cluster=r0</span></font></p>
<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy"> </span></font></p>
<p class="ecxMsoNormal"><font size="1" color="navy" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:navy">At the same time, the cluster configure file should be changed according the new IP address and the new port of the node.</span></font></p>
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<p class="ecxMsoNormal"><b><font size="2" face="宋体"><span style="font-size:10.0pt;font-family:SimSun;font-weight:bold">发件人<span lang="EN-US">:</span></span></font></b><font size="2" face="宋体"><span lang="EN-US" style="font-size:10.0pt;font-family:SimSun"> ocfs2-users-bounces@oss.oracle.com
[mailto:ocfs2-users-bounces@oss.oracle.com] </span></font><b><font size="2" face="宋体"><span style="font-size:10.0pt;font-family:SimSun;font-weight:bold">代表
</span></font></b><font size="2" face="宋体"><span lang="EN-US" style="font-size:10.0pt;font-family:SimSun">Heitor Lessa<br>
</span></font><b><font size="2" face="宋体"><span style="font-size:10.0pt;font-family:SimSun;font-weight:bold">发送时间<span lang="EN-US">:</span></span></font></b><font size="2" face="宋体"><span lang="EN-US" style="font-size:10.0pt;font-family:SimSun"> 2012<span lang="EN-US"><span lang="EN-US">年6</span></span><span lang="EN-US"><span lang="EN-US">月22</span></span><span lang="EN-US"><span lang="EN-US">日</span></span>
19:55<br>
</span></font><b><font size="2" face="宋体"><span style="font-size:10.0pt;font-family:SimSun;font-weight:bold">收件人<span lang="EN-US">:</span></span></font></b><font size="2" face="宋体"><span lang="EN-US" style="font-size:10.0pt;font-family:SimSun"> ocfs2-users@oss.oracle.com<br>
</span></font><b><font size="2" face="宋体"><span style="font-size:10.0pt;font-family:SimSun;font-weight:bold">主题<span lang="EN-US">:</span></span></font></b><font size="2" face="宋体"><span lang="EN-US" style="font-size:10.0pt;font-family:SimSun"> [Ocfs2-users]
Renew IP address node came online again - Amazon EC2</span></font><span lang="EN-US"></span></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">Hi,</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">I was looking for why one of the nodes could not mount OCFS again, then I found this path:</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">/sys/kernel/config/cluster/r0/node/<br>
<br>
Which I have folders related to my servers, then I noticed that node1 (which is working with OCFS2) did not update node2 IP address.</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> The file I am talking about is:</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">/sys/kernel/config/cluster/r0/node/raid2/ipv4_address<br>
<br>
Example:</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">root@node1:/sys/kernel/config/cluster/r0/node/node2# cat ipv4_address</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">10.227.43.31</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">root@node22:/sys/kernel/config/cluster/r0/node/node2# cat ipv4_address</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">10.54.19</span></font><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">.4</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> </span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> </span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma">The question is: How could I update it in order to get it working again Without Restart ocfs service?</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> Cluster.conf - Updated with new IP address</span></font></p>
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<p class="ecxMsoNormal"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> OCFS2 Version - 1.4<br>
OS - Ubuntu Lucid</span></font></p>
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<p class="ecxMsoNormal" style="margin-bottom:12.0pt"><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> Thank you very much.<br>
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</span></font></p>
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